tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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after-same-line-static-method-private-names.js (2054B)


      1 // This file was procedurally generated from the following sources:
      2 // - src/class-elements/private-names.case
      3 // - src/class-elements/productions/cls-decl-after-same-line-static-method.template
      4 /*---
      5 description: private names (field definitions after a static method in the same line)
      6 esid: prod-FieldDefinition
      7 features: [class-fields-private, class, class-fields-public]
      8 flags: [generated]
      9 includes: [propertyHelper.js]
     10 info: |
     11    ClassElement :
     12      ...
     13      FieldDefinition ;
     14 
     15    FieldDefinition :
     16      ClassElementName Initializer_opt
     17 
     18    ClassElementName :
     19      PrivateName
     20 
     21    PrivateName :
     22      # IdentifierName
     23 
     24 ---*/
     25 
     26 
     27 class C {
     28  static m() { return 42; } #x; #y;
     29  x() {
     30    this.#x = 42;
     31    return this.#x;
     32  }
     33  y() {
     34    this.#y = 43;
     35    return this.#y;
     36  }
     37 }
     38 
     39 var c = new C();
     40 
     41 assert.sameValue(C.m(), 42);
     42 assert(
     43  !Object.prototype.hasOwnProperty.call(c, "m"),
     44  "m doesn't appear as an own property on the C instance"
     45 );
     46 assert(
     47  !Object.prototype.hasOwnProperty.call(C.prototype, "m"),
     48  "m doesn't appear as an own property on the C prototype"
     49 );
     50 
     51 verifyProperty(C, "m", {
     52  enumerable: false,
     53  configurable: true,
     54  writable: true,
     55 });
     56 
     57 // Test the private fields do not appear as properties before set to value
     58 assert(!Object.prototype.hasOwnProperty.call(C.prototype, "#x"), "test 1");
     59 assert(!Object.prototype.hasOwnProperty.call(C, "#x"), "test 2");
     60 assert(!Object.prototype.hasOwnProperty.call(c, "#x"), "test 3");
     61 
     62 assert(!Object.prototype.hasOwnProperty.call(C.prototype, "#y"), "test 4");
     63 assert(!Object.prototype.hasOwnProperty.call(C, "#y"), "test 5");
     64 assert(!Object.prototype.hasOwnProperty.call(c, "#y"), "test 6");
     65 
     66 // Test if private fields can be sucessfully accessed and set to value
     67 assert.sameValue(c.x(), 42, "test 7");
     68 assert.sameValue(c.y(), 43, "test 8");
     69 
     70 // Test the private fields do not appear as properties before after set to value
     71 assert(!Object.prototype.hasOwnProperty.call(c, "#x"), "test 9");
     72 assert(!Object.prototype.hasOwnProperty.call(c, "#y"), "test 10");
     73 
     74 reportCompare(0, 0);